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[IPSEC]: Add xfrm_state_afinfo->init_flags

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This patch adds the xfrm_state_afinfo->init_flags hook which allows
each address family to perform any common initialisation that does
not require a corresponding destructor call.

It will be used subsequently to set the XFRM_STATE_NOPMTUDISC flag
in IPv4.

It also fixes up the error codes returned by xfrm_init_state.

Signed-off-by: Herbert Xu <[email protected]>
Acked-by: James Morris <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Herbert Xu 2005-06-20 13:19:41 -07:00 • committed by David S. Miller
commit d094cd83c0
2 changed files with 19 additions and 2 deletions
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20
net/xfrm/xfrm_state.c
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@ -1058,10 +1058,26 @@ EXPORT_SYMBOL(xfrm_state_mtu);
int xfrm_init_state(struct xfrm_state *x)
{
struct xfrm_state_afinfo *afinfo;
int family = x->props.family;
int err;
err = -ENOENT;
x->type = xfrm_get_type(x->id.proto, x->props.family);
err = -EAFNOSUPPORT;
afinfo = xfrm_state_get_afinfo(family);
if (!afinfo)
goto error;
err = 0;
if (afinfo->init_flags)
err = afinfo->init_flags(x);
xfrm_state_put_afinfo(afinfo);
if (err)
goto error;
err = -EPROTONOSUPPORT;
x->type = xfrm_get_type(x->id.proto, family);
if (x->type == NULL)
goto error;